Home / 717,728.18-1,076,592.26-505,151.78

Finding the Fourth Proportional to 717,728.18, 1,076,592.26 and 505,151.78

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Solution

The fourth proportional to 717,728.18, 1,076,592.26 and 505,151.78 is: 757,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,728.18 : 1,076,592.26 = 505,151.78 : x
  2. Step 2: Convert to fraction form
    717,728.18/1,076,592.26 = 505,151.78/x
  3. Step 3: Cross multiply
    717,728.18x = 1,076,592.26 × 505,151.78
  4. Step 4: Simplify right side
    717,728.18x = 543,842,492,353.14
  5. Step 5: Solve for x
    x = 543,842,492,353.14/717,728.18
  6. Step 6: Final answer
    x = 757,727.66

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.